Intraoperative three dimensional correction during in situ contouring surgery by using a numerical model

Spine
Y LafonWafa Skalli

Abstract

A numerical study was conducted by simulating in situ contouring (ISC) surgery. To quantify intraoperative correction during ISC surgery. Surgical techniques correcting scoliosis, like the ISC one, lead to a complex 3-dimensional correction of the spine. Using motion analysis devices to analyze the effect of intraoperative surgical maneuvers was tedious and limited the study to the kinematics of exposed vertebrae. An alternative method consisted in simulating the surgical gestures. However, proposed models were based on rigid instrumentations, and focused attention on specific gestures of the rod-rotation and the distraction techniques through operator-dependent simulations. This study included 10 patients with severe idiopathic scoliosis treated by ISC surgery. From a patient-specific finite-element model (T1-L5 and pelvis), all main steps of the ISC surgery were automatically simulated. A specific algorithm was developed to determine the sequences of bending maneuvers according to the rod shapes chosen by the surgeon. The accuracy of the automated surgery simulation was assessed regarding the virtual postoperative spinal configuration and postoperative clinical data. For each maneuver, vertebral kinematics was computed as wel...Continue Reading

References

Jul 1, 1973·Journal of Biomechanics·T B BelytschkoJ O Galante
Mar 15, 1993·Spine·K J GuideraS Cook
Jun 1, 2000·Medical & Biological Engineering & Computing·D MittonJ A De Guise
Jul 11, 2002·Pediatric Radiology·Kaushik BagchiL Christopher Foley
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Mar 29, 2005·Computer Aided Surgery : Official Journal of the International Society for Computer Aided Surgery·V LafageW Skalli
Sep 15, 2005·Revue de chirurgie orthopédique et réparatrice de l'appareil moteur·P GuiguiUNKNOWN Groupe d'Etude de la Scoliose
Nov 22, 2005·Computer Methods in Biomechanics and Biomedical Engineering·R DumasW Skalli

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Citations

Jun 9, 2012·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Yann Philippe CharlesJean-Paul Steib
Feb 7, 2013·Computer Aided Surgery : Official Journal of the International Society for Computer Aided Surgery·Hongqi ZhangJianhuang Wu
Feb 15, 2015·The Spine Journal : Official Journal of the North American Spine Society·James R PetersSriram Balasubramanian
Nov 2, 2018·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Laurent GajnyWafa Skalli

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